I started doing blotter analysis (business cards) on my LT1 Camaro earlier in the year using Mobil 1 10W30. Now I'm trying to guess what the results mean.
1. first sample aprox. 400 mi. Nearly clear, soaked to about 2" spot w. slight ring at the outside and another about 1/2" in diameter.
2. by 1625 mi this center ring is in the same place but more distinct, more distinct than the outside by far.
3. I add a modified System one filter refitted as a TP bypass filter at 3539 mi.
4. both rings get paler, after a quart of add up oil at 3632, the center ting nearly fades out and there is a clear ring around the outer ring-new oil?
5. by 4000 it looks pretty much the same though the whole sample is a little darker.
Previous actual oil analysis weren't all that good but there was no fuel dilution and no antifreeze present. Insolubles were .5 last time and I'm guessing this is the inner ring.
Anyone got anything to offer? I'm going to continue to monitor this as time goes on.
1. first sample aprox. 400 mi. Nearly clear, soaked to about 2" spot w. slight ring at the outside and another about 1/2" in diameter.
2. by 1625 mi this center ring is in the same place but more distinct, more distinct than the outside by far.
3. I add a modified System one filter refitted as a TP bypass filter at 3539 mi.
4. both rings get paler, after a quart of add up oil at 3632, the center ting nearly fades out and there is a clear ring around the outer ring-new oil?
5. by 4000 it looks pretty much the same though the whole sample is a little darker.
Previous actual oil analysis weren't all that good but there was no fuel dilution and no antifreeze present. Insolubles were .5 last time and I'm guessing this is the inner ring.
Anyone got anything to offer? I'm going to continue to monitor this as time goes on.
